Hondata

did you upload the calibration with the test upload button? because that will set the rev limiter at 2500 also.

do you have the intake air temp sensor hooked up? and you can disable the o2 heater in the closed loop tab, and that might get rid of the code 41.

are you using the test upload button? because i believe that temporarily loads until ignition is shut off.

well, the first calibration b20v stock.skl has no fuel or ignition maps at all from what i can see, so that's why it didn't run. but the other one is basically the same one i downloaded. i have had some problems with having air in my coolant which makes the temp fluctuate a lot. now it just runs ...

Do you have the Barometric Pressure Sensor disabled in SManager?

edit: i see in the calibration it is disabled... also, are you able to download the calibration from the ECU and compare it and make sure everything is getting sent to the s300?

I was getting this error message also. and if my engine was running and i unplugged the usb cable from my s300 it would kill it, and throw a CEL. also if i tapped on the side of the ECU where the s300 is, with the engine running it would do the same. i think my s300 wasn't seated fully on the pins ...

i fixed it. it has been about 6 years since i got the hondata in that ecu, and havent had much of any time to work on that car in a long time. the ECU isnt actually a p28, its a p06 with the vtec circuit added, and the transistor at IC14 had 2 of its leads broken, not sure if it was from sitting ...

Hmm, its back to not working again...

So, I added more oil, about a half quart over the full mark, and VTEC engages almost consistently. it cuts out a little bit still, but it engages and stays on way more than before. so maybe I need a thicker oil. I have been using cheap oil because i had some oil leaks, but i fixed them yesterday ...

I dont have any other honda's anymore :-/ some of my family do, but they are all OBD2's. I will check all the wires for VTEC again right now to see if i can find anything loose.

Oh and 1 more thing, i believe i was getting CEL Code 21 for VTEC Spool a while back, but i ended up disabling the spool error check like a month ago. It would throw the code just by turning the key to the on position, without starting it. I also checked the VTEC solenoid and it opens when i apply ...

Here is another datalog. VTEC never engaged once during this datalog, even though VTS was on. Is the VTP (VTEC Pressure) supposed to be on or off when the VTEC spool is on? it seems to not ever go on. I wonder if it doesnt have enough oil pressure?

92 Integra
P28 ECU
B20B Block, GSR head

I have been having an issue with my VTEC not working most of the time, the datalog shows VTEC spool turns on, but VTEC is definitely not engaging. once in a while VTEC engages, but most of the time it doesn't. a few minutes into this datalog it actually ...